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The series consisted of six heats, with six robots competing in each heat. The six winners from the heats moved onto the Grand Final. In each heat, the six robots would compete through a series of three challenges - the Gauntlet, the Trial and the Arena.

The Gauntlet was an obstacle filled maze defended by house robots. Competitor robots had to make their way as far down the course as possible in the time allowed. The robot covering the least ground was eliminated, leaving five robots to continue.

The Trial varied from heat to heat with games like, 'Sumo', 'British Bulldog', 'Stock Car', 'Labyrinth', 'Snooker', and 'Football'. Each trial had a specific goal and the worst performing robot was eliminated, leaving four robots to continue.

The Arena was the point at which the robots finally entered the arena to do combat. The four remaining robots paired off and fought head-to head in the enclosed arena patrolled by the house robots. The two victorious robots then fought for the heat championship. The winner of each heat then went through to the Grand Final.

In the Grand Final, which was held at the end of the final heat, the six heat winners met in a single battle to determine the champion of the series.